Tarea 04

Cargamos los paquetes

library(sf)
library(raster)
library(dplyr)
library(rmapshaper)
library(spData)
library(leaflet)

Carga de registros de Orquideas en Costa Rica

orquideas_cr <-
  st_read(
    "https://raw.githubusercontent.com/gf0604-procesamientodatosgeograficos/2021i-datos/main/gbif/orchidaceae-cr-registros.csv",
    options = c(
      "X_POSSIBLE_NAMES=decimalLongitude",
      "Y_POSSIBLE_NAMES=decimalLatitude"
    ),
    quiet = TRUE
  )
st_crs(orquideas_cr) = 4326

Carga de áreas protegidas

asp_cr <-
  st_read(
    "https://raw.githubusercontent.com/gf0604-procesamientodatosgeograficos/2021i-datos/main/sinac/asp/asp-wgs84.geojson",
    quiet = TRUE
  )
st_crs(asp_cr) = 4326

Se eliminan los registros con un valor mayor a 1000 y los registros con valor vacío o NA

orquideas_cr <- filter(
  orquideas_cr,
  coordinateUncertaintyInMeters < 1000,
  !is.na(species),
  species != ""
)

Se eliminan los registros con valor de Area Marina de Manejo

asp_cr <- filter(
  asp_cr,
  descripcio != "Area Marina de Manejo",
  descripcio != "Area marina protegida"
)


areas <- asp_cr %>% 
  st_make_valid() %>%
  st_join(orquideas_cr) %>% 
  group_by(nombre_asp) %>%
  summarize(species = n())

Paleta de colores

colores_especies <-
  colorNumeric(
  palette = "YlOrRd",
  domain = areas$species,
  na.color = "transparent"
)

Agregamos la capa base

leaflet() %>%
  addTiles() %>%
  addPolygons(
    data = areas,
    fillColor = ~ colores_especies(areas$species),
    fillOpacity = 0.7,
    stroke = TRUE,
    color = "black",
    weight = 1,
    popup = paste(
      paste(
        "<strong>ASP:</strong>",
        areas$nombre_asp
      ),
      paste(
        "<strong>Cantidad de especies:</strong>",
        areas$species
        
      ),
      sep = '<br/>'
    ),
    group = "ASP - especies"
  ) %>%
  addLegend(
    position = "bottomleft",
    pal = colores_especies,
    values = areas$species,
    group = "ASP - especies",
    title = "Cantidad de especies"
  ) %>%
  addProviderTiles(providers$OpenStreetMap.Mapnik, group = "OpenStreetMap") %>%
  addProviderTiles(providers$Stamen.TonerLite, group = "Stamen Toner Lite") %>%
  addProviderTiles(providers$OpenTopoMap, group = "Topografía") %>%
  addLayersControl(
    baseGroups = c("OpenStreetMap", "Stamen Toner Lite","Topografía"),
    overlayGroups = c("ASP - especies")
  )